Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1186/s12862-022-01990-2 |
Variation in intraspecific demography drives localised concordance but species-wide discordance in response to past climatic change | |
Buckley, Sean James; Brauer, Chris J.; Unmack, Peter J.; Hammer, Michael P.; Beheregaray, Luciano B. | |
通讯作者 | Beheregaray, LB |
来源期刊 | BMC ECOLOGY AND EVOLUTION
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EISSN | 2730-7182 |
出版年 | 2022 |
卷号 | 22期号:1 |
英文摘要 | Background Understanding how species biology may facilitate resilience to climate change remains a critical factor in detecting and protecting species at risk of extinction. Many studies have focused on the role of particular ecological traits in driving species responses, but less so on demographic history and levels of standing genetic variation. Additionally, spatial variation in the interaction of demographic and adaptive factors may further complicate prediction of species responses to environmental change. We used environmental and genomic datasets to reconstruct the phylogeographic histories of two ecologically similar and largely co-distributed freshwater fishes, the southern (Nannoperca australis) and Yarra (N. obscura) pygmy perches, to assess the degree of concordance in their responses to Plio-Pleistocene climatic changes. We described contemporary genetic diversity, phylogenetic histories, demographic histories, and historical species distributions across both species, and statistically evaluated the degree of concordance in co-occurring populations. Results Marked differences in contemporary genetic diversity, historical distribution changes and historical migration were observed across the species, with a distinct lack of genetic diversity and historical range expansion suggested for N. obscura. Although several co-occurring populations within a shared climatic refugium demonstrated concordant demographic histories, idiosyncratic population size changes were found at the range edges of the more spatially restricted species. Discordant responses between species were associated with low standing genetic variation in peripheral populations. This might have hindered adaptive potential, as documented in recent demographic declines and population extinctions for the two species. Conclusion Our results highlight both the role of spatial scale in the degree of concordance in species responses to climate change, and the importance of standing genetic variation in facilitating range shifts. Even when ecological traits are similar between species, long-term genetic diversity and historical population demography may lead to discordant responses to ongoing and future climate change. |
英文关键词 | Coalescent analysis Biogeography Comparative phylogeography Temperate Australia Percichthyidae |
类型 | Article |
语种 | 英语 |
开放获取类型 | gold, Green Published |
收录类别 | SCI-E |
WOS记录号 | WOS:000772132400001 |
WOS关键词 | AUSTRALIAN ARID ZONE ; MURRAY-DARLING BASIN ; LIFE-HISTORY ; ADAPTIVE EVOLUTION ; GENETIC-VARIATION ; PYGMY PERCH ; ADAPTATION ; LIMITS ; SIZE ; PHYLOGEOGRAPHY |
WOS类目 | Ecology ; Evolutionary Biology ; Genetics & Heredity |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/391997 |
推荐引用方式 GB/T 7714 | Buckley, Sean James,Brauer, Chris J.,Unmack, Peter J.,et al. Variation in intraspecific demography drives localised concordance but species-wide discordance in response to past climatic change[J],2022,22(1). |
APA | Buckley, Sean James,Brauer, Chris J.,Unmack, Peter J.,Hammer, Michael P.,&Beheregaray, Luciano B..(2022).Variation in intraspecific demography drives localised concordance but species-wide discordance in response to past climatic change.BMC ECOLOGY AND EVOLUTION,22(1). |
MLA | Buckley, Sean James,et al."Variation in intraspecific demography drives localised concordance but species-wide discordance in response to past climatic change".BMC ECOLOGY AND EVOLUTION 22.1(2022). |
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